Ｄreaming
Dreaming is a formation of large images. But why people dream? Today, people can understand only a little. When you are dreaming, your eyes turn quickly and sometimes there will be some physical activities. Human are not the only creature that will dream, some mammals and birds will dream as well. Scientists calculate the time which people spend on each dream and on their lifetime. People spend about two hours dreaming while sleeping, and it will spend about six years dreaming in their total lifetime. There will be good dreams and bad dreams. Some people think that dreaming must represent a certain meaning, so they try to interpret them. However, some dreams will make you feel very strange, too.
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